Contents -- Acknowledgments -- INTRODUCTION: The Allure of Pure Mathematics in the Victorian Age -- CHAPTER ONE: Heavenly Symbols: Sources of Victorian Mathematical Idealism -- CHAPTER TWO: God and Math at Harvard: Benjamin Peirce and the Divinity of Mathematics -- CHAPTER THREE: George Boole and the Genesis of Symbolic Logic -- CHAPTER FOUR: Augustus De Morgan and the Logic of Relations -- CHAPTER FIVE: Earthly Calculations: Mathematics and Professionalism in the Late Nineteenth Century -- Notes -- Bibliography -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- Y.